PRIMARY MAINTENANCE
I
Generally, wash
Clean paper elements by tapping lightly. Blowing with air will rupture paper elements.
Use a flashlight to detect clogged or torn paper elements - replace If damaged In any way.
Dirt can also be Introduced into an engine In dirty fuel from a contaminated
container. Always use clean fresh fuel from a clean
container to guard against
dirt, sludge and water contamination.
Be aware that fuel breaks down In storage and forms gummy compounds which will block carburetor pass-
ages. Never use fuel more than 3 months old. Drain
tank then run the engine out of fuel before storing during the
Air Is also needed to keep your engine cool. Dirt, dust
&debris build up to restrict and clog cooling air Intake screens and fins. Clean screens and fins at frequent Intervals. The engine blower housing and shrouds should be removed at least once each season or more often
iunder dry, dusty conditions for a thorough cleaning of fins.
Failure to keep external surfaces clean not only presents fire hazards, but causes overheating and resulting engine damages such as:
1.distorted valve guides
2.sticking valves
o o. 3. scuffed, scored walls
4.overspeedlng
5.loss of power
6.complete failure of engine.
An engine must also have proper lubrication.
All engines use some oil. On
CHECK OIL LEVEL BEFORE EACH START-UP.
Wipe area clean around the oll check plug or dipstick opening to keep dirt from falling into
the engine when checking the oil Always check with the machine on a level surface.
On engines with dipstick, keep the level up to, but not over, the FULL mark. When adding o11, allow time for all of the oll to flow down the fill tube to prevent a false full reading when the level could actually be low and result In engine damage.
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